I'm trying to see where the amounts for the other deductions come from that comprise line 24900 of the T1. Where can I see the numbers used?

Security Options Deductions – Line 24900: If your employer offers you stocks or stock options as a benefit of employment, you may be able to claim a deduction here. Claim on line 24900 the total of the amounts shown in boxes 39 and 41 of your T4 slips.

Personal Income Tax Deductions in Canada.

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